FUEL CELL

PROBLEM TO BE SOLVED: To improve electric power generation efficiency by improving the structure of a positive electrode of a fuel cell for efficiently draining formed water excessively generated during high-load operation and a long-term operation, while moisturizing an electrolyte film. SOLUTION:...

Full description

Saved in:
Bibliographic Details
Main Authors KIKUCHI TETSUO, TAKAHASHI TAKESHI, SO ITSUSHIN, NITTA TAKAHIRO
Format Patent
LanguageEnglish
Published 11.10.2002
Edition7
Subjects
Online AccessGet full text

Cover

Loading…
More Information
Summary:PROBLEM TO BE SOLVED: To improve electric power generation efficiency by improving the structure of a positive electrode of a fuel cell for efficiently draining formed water excessively generated during high-load operation and a long-term operation, while moisturizing an electrolyte film. SOLUTION: A positive electrode 3 and a negative electrode 4 are arranged with interposing an electrolyte film 2, and oxidization gas is supplier to a gas flow passage 51 of the positive electrode 3 side and fuel gas is supplied to a gas flow passage 61 of the negative electrode 4 side, to generate electric power. The positive electrode 3 includes a hydrophilic base material layer 31 and a water-repellant layer 32 partially formed on the side of the surface of the gas flow passage 51. The water-repellant layer 32 is formed on a surface, excluding the lower part of the base material layer 31 where excessive formation water formed by positive electrode reaction is retained, to accelerate draining of retaining formed water.
Bibliography:Application Number: JP20010102895